China has for the first time landed several bombers on an island in the disputed South China Sea, a move that could provoke renewed tensions between countries bordering the strategically vital maritime region.

Several bombers of various types — including the long-range, nuclear strike capable H-6K — carried out landing and take off drills at an unidentified island airfield after carrying out simulated strike training on targets at sea, the Chinese airforce said in a statement Friday.

Since China began its extensive land reclamation program in the South China Sea in 2013, Beijing has focused on improving its presence and infrastructure at seven locations in the Spratly Island chain: Cuarteron Reef, Fiery Cross, Gaven, Hughes, Johnson, Mischief and Subi reefs.

President Donald Trump on Sunday offered to mediate in the South China Sea disputes, while his Chinese counterpart played down concerns over Beijing’s military buildup and the prospects of war in the contested waters.

Trump and Chinese President Xi Jinping spoke separately about the territorial rifts ahead of an annual summit of Southeast Asian nations that also includes the U.S., China and other global players. The disputes are expected to get the spotlight at the summit, along with the North Korean nuclear threat and terrorism.

The long-simmering disputes are one issue where the two major powers’ influence, focus and military might have been gauged, with the U.S. and China both calling for a peaceful resolution but taking contrasting positions in most other aspects of the conflict.

Flying into Singapore’s Changi Airport, one is struck by the fleet of ships lined up off shore, the tendrils of a global trade network squeezing through the narrow Malacca Strait. Singapore is the hub, the connector between the Indian Ocean, South China Sea and Pacific. Since the late 1970s, with little exception, trade has amounted to some 300 percent of Singapore’s total gross domestic product, with exports making up between 150 and 230 percent of GDP. Singapore is the product of global trade, and the thriving multiethnic city-state can trace its trade role back centuries.

Trade is the lifeblood of the Asia-Pacific, and even as nationalism rises, the region still sees a globalized world as a greater reward than risk.(RODGER BAKER)